Commit-ID: 155027121fe52f9b4f25e9d156c22f2f5012e5fe
Gitweb: http://git.kernel.org/tip/155027121fe52f9b4f25e9d156c22f2f5012e5fe
Author: Tao Ma <tao.ma@xxxxxxxxxx>
AuthorDate: Thu, 12 Aug 2010 10:36:38 +0800
Committer: Tao Ma <tao.ma@xxxxxxxxxx>
CommitDate: Thu, 12 Aug 2010 10:39:57 +0800
ocfs2: Add struct file to ocfs2_refcount_cow.
Add a new parameter 'struct file *' to ocfs2_refcount_cow
so that we can add readahead support later.
Signed-off-by: Tao Ma <tao.ma@xxxxxxxxxx>
---
fs/ocfs2/aops.c | 2 +-
fs/ocfs2/file.c | 8 ++++----
fs/ocfs2/refcounttree.c | 4 +++-
fs/ocfs2/refcounttree.h | 3 ++-
4 files changed, 10 insertions(+), 7 deletions(-)
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index e3efdd9..7155c5a 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -1693,7 +1693,7 @@ int ocfs2_write_begin_nolock(struct file *filp,
mlog_errno(ret);
goto out;
} else if (ret == 1) {
- ret = ocfs2_refcount_cow(inode, di_bh,
+ ret = ocfs2_refcount_cow(inode, filp, di_bh,
wc->w_cpos, wc->w_clen, UINT_MAX);
if (ret) {
mlog_errno(ret);
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 5920159..4331f57 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -361,7 +361,7 @@ static int ocfs2_cow_file_pos(struct inode *inode,
if (!(ext_flags & OCFS2_EXT_REFCOUNTED))
goto out;
- return ocfs2_refcount_cow(inode, fe_bh, cpos, 1, cpos+1);
+ return ocfs2_refcount_cow(inode, NULL, fe_bh, cpos, 1, cpos+1);
out:
return status;
@@ -904,8 +904,8 @@ static int ocfs2_zero_extend_get_range(struct inode *inode,
zero_clusters = last_cpos - zero_cpos;
if (needs_cow) {
- rc = ocfs2_refcount_cow(inode, di_bh, zero_cpos, zero_clusters,
- UINT_MAX);
+ rc = ocfs2_refcount_cow(inode, NULL, di_bh, zero_cpos,
+ zero_clusters, UINT_MAX);
if (rc) {
mlog_errno(rc);
goto out;
@@ -2071,7 +2071,7 @@ static int ocfs2_prepare_inode_for_refcount(struct inode *inode,
*meta_level = 1;
- ret = ocfs2_refcount_cow(inode, di_bh, cpos, clusters, UINT_MAX);
+ ret = ocfs2_refcount_cow(inode, file, di_bh, cpos, clusters, UINT_MAX);
if (ret)
mlog_errno(ret);
out:
diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
index 3ac5aa7..66dab3c 100644
--- a/fs/ocfs2/refcounttree.c
+++ b/fs/ocfs2/refcounttree.c
@@ -3404,6 +3404,7 @@ static int ocfs2_replace_cow(struct ocfs2_cow_context *context)
* unrefcounted extent.
*/
static int ocfs2_refcount_cow_hunk(struct inode *inode,
+ struct file *file,
struct buffer_head *di_bh,
u32 cpos, u32 write_len, u32 max_cpos)
{
@@ -3481,6 +3482,7 @@ out:
* clusters between cpos and cpos+write_len are safe to modify.
*/
int ocfs2_refcount_cow(struct inode *inode,
+ struct file *file,
struct buffer_head *di_bh,
u32 cpos, u32 write_len, u32 max_cpos)
{
@@ -3500,7 +3502,7 @@ int ocfs2_refcount_cow(struct inode *inode,
num_clusters = write_len;
if (ext_flags & OCFS2_EXT_REFCOUNTED) {
- ret = ocfs2_refcount_cow_hunk(inode, di_bh, cpos,
+ ret = ocfs2_refcount_cow_hunk(inode, file, di_bh, cpos,
num_clusters, max_cpos);
if (ret) {
mlog_errno(ret);
diff --git a/fs/ocfs2/refcounttree.h b/fs/ocfs2/refcounttree.h
index 9983ba1..29cba0e 100644
--- a/fs/ocfs2/refcounttree.h
+++ b/fs/ocfs2/refcounttree.h
@@ -52,7 +52,8 @@ int ocfs2_prepare_refcount_change_for_del(struct inode *inode,
u32 clusters,
int *credits,
int *ref_blocks);
-int ocfs2_refcount_cow(struct inode *inode, struct buffer_head *di_bh,
+int ocfs2_refcount_cow(struct inode *inode,
+ struct file *filep, struct buffer_head *di_bh,
u32 cpos, u32 write_len, u32 max_cpos);
typedef int (ocfs2_post_refcount_func)(struct inode *inode,
--
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